18 search results - page 2 / 4 » Optimizing positional index structures for versioned documen... |
PODS
2009
ACM
14 years 5 months ago
2009
ACM
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
ICDE
2003
IEEE
14 years 6 months ago
2003
IEEE
XML data integration tools are facing a variety of challenges for their efficient and effective operation. Among these is the requirement to handle a variety of inconsistencies or...
PVLDB
2008
13 years 4 months ago
2008
In this paper we present the AlvisP2P IR engine, which enables efficient retrieval with multi-keyword queries from a global document collection available in a P2P network. In such...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
Keyphrases are short phrases that reflect the main topic of a document. Because manually annotating documents with keyphrases is a time-consuming process, several automatic appro...
DBISP2P
2006
Springer
13 years 8 months ago
2006
Springer
Abstract. This paper addresses the problem of data placement, indexing, and querying large XML data repositories distributed over an existing P2P service infrastructure. Our archit...